From the developer: "Privatefirewall is a Personal Firewall and Intrusion Detection Application that eliminates unauthorized access to your PC, at home, the office, or on the road. Privatefirewall also constantly monitors the sensitive areas of a PC where intrusion can occur and reports on their status allowing users to take appropriate action. Privatefirewall is easy to install/use and provides reliable and high-performance protection right 'out of the box'. Privatefirewall's intuitive interfaces allow advanced users to easily adjust default settings to create custom configurations. Features include: Internet traffic (packet) filtering, port scanning, IP tracking, SecurePOP email protection, and a proprietary Application Control Engine (ACE), which monitors all applications that access the Internet to further protect your system against online hacker attempts. Privatefirewall is high-performance desktop security that is affordable, feature-rich and simple to use."